We developed a simple inexpensive method to integrate ZnO nanowires into
a microchannel using a combination of aqueous solution synthesis of ZnO
nanowires and photolithography, which is used as a nanowire-embedded microfluidic
device. The density of ZnO nanowires inside the microchannel
is controllable by simply changing the concentration of the seed solution.
We conducted a study of dynamic interactions between electric field driven
!DNA and a single isolated ZnO nanowire using single molecule spectroscopy
technique. The study shows that the hooking time is exponentially dependent
on b/Rg, in agreement with a prediction by simulation work. We also
find that the hooking probability for small values of b/Rg increases as the
electric field strength increases.